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Topological equivalence of the 2-sphere and the extended complex plane (the `Riemann sphere') – Dr Christian P. H. Salas
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4: The sphere is homeomorphic to the surface of an octahedron, which is... | Download Scientific Diagram
How can one prove that the radial projection from a tetrahedron to the sphere is a homeomorphism? - Quora
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general topology - Showing homeomorphism between $X/{\sim}$ and the resulting quotient space - Mathematics Stack Exchange
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